| Tournament | Round | Sal Costanzo | Betty Foreman |
| 15.04.1998 Australian Championships (TAS) | 16 | 320 | 473 |
| 15.04.1998 Australian Championships (TAS) | 20 | 426 | 392 |
| 05.10.1998 New South Wales Championships (NSW) | 6 | 317 | 373 |
| 14.06.1999 Victorian Championships (VIC) | 7 | 368 | 333 |
| Head-to-head after 4 games | 2 | 2 | |
| Average score | 357.75 | 392.75 | |
| Spread: | -140 | 140 | |